QUESTION $4$

$4\mathrm{.}1$ Explain the three major categories of Unit Load Retrieval Equipment and for each category cite and describe at least two equipment examples.

$(9)$

$4\mathrm{.}2$ Describe the below Conveyor Sorting Devices as well as explicating when and how they are used.

$4\mathrm{.}2\mathrm{.}1$ Push Diverter

$(2)$

$4\mathrm{.}2\mathrm{.}2$ Cross$-$Belt Sorter

$(2)$

$4\mathrm{.}2\mathrm{.}3$ Adjustable Angle Conveyor Sorter

$(2)$